JPH06288343A - Pumping device - Google Patents

Abstract

PURPOSE:To provide a pumping device in which no dust is penetrated into a control box, setting space can be minimized to effectively utilize the space, a compact and effective sound insulating measure can be easily taken, and the cost of an inverter can be reduced. CONSTITUTION:In a pumping device in which boosters 3A, 3B are controlled by a control part 12 consisting of an operation command control device 12a and inverter 12b housed in a control box 15 on the basis of the pressure detection signal from a pressure sensor 10 which detects the water pressure in a flood pipe 6, a base 11 is mounted in contact with the flood pipe 6, and the operation command control device 12a and the inverter 12b are mounted on the base 11 in contact therewith to form the control box 15 into a substantially sealed constitution.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pumping system in which a booster is driven and controlled by a control unit including a control device and an inverter housed in a control box, based on a pressure detection signal from a pressure sensor or the like which detects the water pressure in a pipe. It relates to the device.

[0002]

2. Description of the Related Art In the conventional pumping apparatus as described above, a pressure sensor detects the pressure of water pumped by a booster and outputs a pressure detection signal to a control unit. Then, the control unit to which the pressure detection signal is supplied from the pressure sensor drives and controls the booster based on the pressure detection signal so that the water pressure becomes constant.
Therefore, the pressure of the water to be pumped can be controlled to be constant and the water can be pumped to a predetermined location.

The control unit is an operation command control device composed of a circuit element or the like which performs arithmetic processing based on the pressure detection signal, and an inverter which drives and controls the booster based on a signal from the operation command control device. It is configured, and the operation command control device and the inverter are housed in the control box. Since the operation command control device and the inverter have a heat generating part that generates heat by operating, in order to cool the operation command control device and the inverter in the control box, the atmosphere is circulated by a fan in the control box, Filters remove atmospheric dust to prevent dust from entering the control box.

[0004]

Conventionally, when an operation command control device or an inverter having a heat generating portion is housed in a control box as a control portion and a booster is drive-controlled, heat radiation is required, so that the atmosphere is contained in the control box. It was circulated by a fan for cooling and dust in the atmosphere was removed by a filter. Also,
Atmosphere also circulates inside the control box, so a sufficient space is required. Then, when the cooling effect drops, heat is accumulated, which not only shortens the life of the circuit element or the inverter, but also causes failure or damage.

Therefore, it is necessary to regularly inspect whether the operation command control device or the inverter is dust-free and whether the fan is normal, and perform a predetermined maintenance work. In addition, since an air-cooled type booster is often used as the booster, the motor casing is made of a good conductor of heat and the motor or / and the motor casing is efficiently radiated heat generated by the operation of the motor unit. A cooling fin is attached to the motor casing, and a large number of ventilation holes for heat dissipation are provided in the motor casing.

Therefore, since it is necessary to secure a heat radiation space for circulating air around the land pump to radiate the heat of the motor portion, the installation space becomes large and the space can be effectively used. Disappear. Furthermore, in order to shield the operating noise of the motor from leaking to the outside, even if you try to cover the land pump with a soundproof box, for example, heat will be accumulated in the soundproof box, and the aforementioned heat dissipation space will be secured. Considering that it must be done, it is difficult to provide a compact and effective soundproofing measure.

The present invention has been made in order to eliminate the above-mentioned inconvenience, and dust is not introduced into the control box, and the installation space is small and the space can be effectively used, which is compact and effective. The present invention provides a water pumping device that can easily perform general soundproofing and can reduce the cost and size of an inverter.

[0008]

SUMMARY OF THE INVENTION The present invention provides a pumping apparatus for controlling a booster by a control unit housed in a control box,
The heat generating part of the control part is attached in contact with the pipe, and the control box has a substantially sealed structure. Then, a pedestal that is attached in contact with the pipe and that conducts heat is provided, and the heat generating portion of the control unit is brought into contact with and attached to the pedestal.

Another aspect of the present invention is a pumping system in which a booster is controlled by a control unit including a control unit and an inverter housed in a control box, and at least the heat generating section of the inverter is attached in contact with a pipe, and the control box is almost It has a closed structure. Then, a pedestal that is attached in contact with the pipe and that conducts heat is provided, and at least the heat generating portion of the inverter is brought into contact with the pedestal and attached.

[0010]

When heat is generated in the control unit by the operation of the water pumping apparatus according to the present invention, the heat of the control unit is transferred to the water in the pipe through the pedestal and the pipe, is transferred, and is radiated. Therefore, the control unit is cooled by the water flowing in the pipe.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory diagram showing a configuration of a water pumping apparatus which is an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing a connection state of piping, a cooling pedestal, and a control unit. In these figures, 1 is a water inlet pipe, 2A and 2B are sluice valves connected to the water inlet pipe 1, 3
A is a booster connected to the sluice valve 2A, 3B is a sluice valve 2
The booster connected to B is shown, and boosters 3A and 3B are water-cooling type which cools a motor part by circulating water around a motor part.

4A is a check valve connected to the booster 3A,
5A is a sluice valve connected to the check valve 4A, 4B is a sluice valve connected to the booster 3B, and 5B is a sluice valve connected to the check valve 4B. The check valves 4A and 4B may be built in the boosters 3A and 3B, respectively. Reference numeral 6 denotes a water outlet pipe connected to the sluice valves 5A and 5B, a sluice valve 7 is connected in the middle thereof, and a sluice valve 9 is arranged in front of the sluice valve 7. Reference numeral 8 indicates a pressure tank connected to the sluice valve 7, and 10 indicates a pressure sensor. The pressure sensor 10 outputs a water pressure detection signal for detecting the water pressure of the water discharge pipe 6.

Reference numeral 11 denotes a cooling pedestal made of a good conductor of heat, which is attached in contact with the water discharge pipe 6 and constitutes a control unit 12 which constitutes an operation command control device 12a and an inverter 12.
b is attached in contact. Reference numeral 12 denotes a control unit, which includes an operation command control device 12a that performs arithmetic processing based on a pressure detection signal from the pressure sensor 10, and boosters 3A and 3B based on signals from the operation command control device 12a.
And an inverter 12b for driving and controlling

13A is a booster 3A and an inverter 12b
Booster cable to connect with, 13B is booster 3B
And a booster cable that connects the inverter to the inverter 12b, 1
Reference numeral 4 represents a power cable. Reference numeral 15 denotes a control box, which includes a part of the water inlet pipe 1, a gate valve 2A to a gate valve 5B, a part of the water outlet pipe 6,
Gate valves 7, 9, pressure tank 8, pressure sensor 10, cooling pedestal 11, controller 12, and booster cables 13A, 1
It accommodates 3B and has a structure in which it is in a substantially sealed state.

Next, the operation will be described. First, when the place where water is used is in the water use state, the control unit 12 determines, for example, the booster 3 based on the pressure detection signal from the pressure sensor 10.
Drive A is controlled. Then, when the booster 3A operates, the water flowing into the booster 3A from the water inlet pipe 1 via the sluice valve 2A is pressure-fed by the booster 3A and is sent to the water outlet pipe 6 via the check valve 4A and the sluice valve 5A. .

Therefore, until the water is not used,
Pumping is performed by the booster 3A. When pumping water in this way, the control unit 12 drives and controls the booster 3A based on the pressure detection signal, and controls the pumping water pressure to be constant. Then, the heat generated from the operation command control device 12a and the inverter 12b due to the operation of the control unit 12 is conducted to water via the cooling pedestal 11 and the water outlet pipe 6, and is transported and radiated.

As described above, according to the embodiment of the present invention, the heat generated from the operation command control device 12a and the inverter 12b by the operation of the control unit 12 is
It conducts to water through the cooling pedestal 11 and the water outlet pipe 6, and is transported and radiated. Therefore, even if the control box 15 has a substantially closed structure so that dust does not enter, the heat of the operation command control device 12a and the inverter 12b can be radiated, so that the operation is normally performed without degrading the function.

Since the boosters 3A and 3B are water-cooled, the booster 3 does not need any special cooling measures.
Since the heat of the motor portions A and 3B can be effectively radiated, the control box 15 can cover the boosters 3A and 3B without providing a heat radiation space. Therefore, the whole can be unitized for easy handling, the installation space can be reduced and the space can be effectively used, and the space can be housed in a wall or the like.

Further, the heat generating portion of the inverter 12b may be attached directly to the cooling pedestal 11 without attaching a cooling fin to the heat generating portion of the inverter 12b.
Cost reduction and size reduction of 2b can be achieved. Then, since water flows around the entire outer periphery of the motor parts of the boosters 3A and 3B and the outer side of the motor cylinder is covered with the outer cylinder, it is possible to reduce the operating noise of the motor part without covering with a soundproof box or the like. Be effective.

Further, since it is not necessary to secure a heat radiation space around the boosters 3A and 3B, in order to prevent the operating noise from leaking to the outside, for example, by providing a soundproofing inside the control box 15. , Compact and effective soundproofing can be easily implemented.

FIG. 3A is an explanatory view showing another connection state between the pipe and the cooling pedestal, and FIG. 3B is an enlarged sectional view taken along the line AA of FIG. 3A. The same or corresponding parts as those in FIG. 2 are designated by the same reference numerals and the description thereof will be omitted. In FIG. 3, reference numeral 6a denotes a thin pipe, which is formed by dividing the portion of the water outlet pipe 6 with which the cooling pedestal 11 contacts, into a plurality of parts, and is for increasing the contact area with the cooling pedestal 11. The portion of the cooling pedestal 11 that comes into contact with the thin tube 6a is the thin tube 6a.
It corresponds to the shape of a.

FIG. 4 (a) is an explanatory view showing still another connection state between the pipe and the cooling pedestal, and FIG. 4 (b) is B in FIG. 4 (a).
It is an expanded sectional view by the line -B, the same code | symbol is attached | subjected to FIG. 1-FIG. 3 or an equivalent part, and description is abbreviate | omitted. In FIG. 4, reference numeral 6b denotes a flat portion, which is a flat portion of the water outlet pipe 6 with which the cooling pedestal 11 comes into contact.
This is for increasing the contact area with 1. The portion of the cooling pedestal 11 that contacts the flat portion 6b corresponds to the shape of the flat portion 6b.

As shown in FIGS. 3 and 4, when the cooling pedestal 11 is attached to the thin pipe 6a portion or the flat portion 6b of the water outlet pipe 6 in contact with each other, the contact area between the water outlet pipe 6 and the cooling pedestal 11 becomes large. The heat of the operation command control device 12a and the inverter 12b forming the control unit 12 is efficiently conducted to the water flowing through the water outlet pipe 6 via the cooling pedestal 11 and the water outlet pipe 6. Therefore, the heat of the control unit 12 can be efficiently dissipated.

FIG. 5 is an explanatory view showing the structure of a water pumping apparatus which is another embodiment of the present invention. The same or corresponding parts as in FIGS. In the embodiment of FIG. 1, the cooling pedestal 11 and the controller 12 are arranged in the water outlet pipe 6, but in this embodiment, the cooling pedestal 11 and the controller 12 are arranged in the water inlet pipe 1.

Therefore, also in this embodiment, FIG.
It is possible to obtain the same effect as that of the embodiment. By configuring the water inlet pipe 1 and the cooling pedestal 11 as shown in FIG. 2 or 3, the same effect as that of FIG. 2 or 3 can be obtained.

In the above embodiment, the booster 3
Although the example in which A and 3B are water-cooled pumps has been described, the boosters may be air-cooled and arranged outside the control box. In addition, at least the cooling pedestal 11 of the water inlet pipe 1 or the water outlet pipe 6
By configuring the portion where is arranged with a good thermal conductor, heat conduction is improved and heat dissipation can be further promoted.

Further, the example in which the operation command control device 12a and the inverter 12b are mounted in contact with the cooling pedestal 11 has been described. However, when the control part 12 is not provided with the inverter 12b, only the operation command control device 12a is cooled. When the inverter 12b is attached to the pedestal 11 and the control unit 12 is provided with the inverter 12b, the heat from the operation command control device 12a is small. Obtainable.

Although the cooling pedestal 11 has been described as an example in which it is made of a good heat conductor, it goes without saying that it may be made of a material that can conduct heat. Furthermore, although an example has been described in which everything is housed in the control box 15, it goes without saying that at least the control unit 12 may be housed in the control box 15.

[0029]

As described above, according to the present invention, the heat generating portion of the control portion is attached to the pipe directly or through the pedestal,
Since the control box has a substantially sealed structure, the heat generated from the operation command control device and / or the inverter by the operation of the control unit is conducted to the water through the pedestal and the pipe, and is transferred and radiated. Then, since the dust does not enter the control box, the device operates normally without degrading its function.

Further, the fan of the inverter becomes unnecessary,
Since a filter and the like are not needed and a space for heat dissipation in the control box and the inverter is also unnecessary, a compact control box and an inverter can be obtained, and the cost can be reduced. Further, the booster is a water-cooled type that cools the motor part by circulating water around the motor part, and is housed in the control box. Can be effectively used and can be housed in a wall or the like, and compact and effective soundproofing can be easily provided.

Then, the pedestal is made of a good conductor of heat, the portion of the pipe which the pedestal makes contact with is made of a good conductor of heat, or a part of the pipe is divided into a plurality of thin pipes or made into a flat shape to make contact with the pedestal. Therefore, heat conduction is improved and heat dissipation can be further promoted.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a configuration of a water pumping apparatus that is an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a connection state of a pipe, a cooling pedestal, and a control unit.

FIG. 3A is an explanatory view showing another connection state of the pipe and the cooling pedestal, and FIG. 3B is an enlarged sectional view taken along line AA of FIG.

FIG. 4A is an explanatory view showing still another connection state between the pipe and the cooling pedestal, and FIG. 4B is an enlarged sectional view taken along the line BB of FIG. 4A.

FIG. 5 is an explanatory diagram showing a configuration of a water pumping device which is another embodiment of the present invention.

[Explanation of symbols]

 1 water inlet pipe 2A, 2B sluice valve 3A, 3B booster 4A, 4B check valve 5A, 5B sluice valve 6 water pipe 6a thin pipe 6b flat portion 7, 9 sluice valve 8 pressure tank 10 pressure sensor 11 cooling pedestal 12 controller 12a operation Command controller 12b Inverter 15 Control box

Claims (9)

[Claims] 1. A pumping apparatus for controlling a booster by a control section housed in a control box, wherein a heat generating section of the control section is attached in contact with the pipe, and the control box has a substantially sealed structure. Pumping equipment. 2. The water pumping apparatus according to claim 1, wherein a pedestal that is attached in contact with the pipe and conducts heat is provided, and a heat generating portion of the control unit is attached in contact with the pedestal. Characterizing pumping equipment. 3. A pumping apparatus for controlling a booster by a control unit including a control unit housed in a control box and an inverter, wherein at least a heat generating section of the inverter is attached in contact with the pipe, and the control box has a substantially sealed structure. The pumping equipment characterized in that 4. The water pumping apparatus according to claim 3, wherein a pedestal that is attached in contact with the pipe and that conducts heat is provided, and at least the heat-generating portion of the inverter is attached in contact with the pedestal. Characterizing pumping equipment. 5. The water pumping apparatus according to claim 2 or 4, wherein the pedestal is made of a good thermal conductor. 6. The water pumping system according to claim 1, wherein the booster is housed in the control box, and water is circulated around the motor unit to cool the motor unit. A pumping device characterized by: 7. The water pumping apparatus according to claim 1, wherein the heat generating part of the control part, the pedestal, or the part of the pipe with which the heat generating part of the inverter contacts is made of a good thermal conductor. , A pumping device characterized by the following. 8. The water pumping apparatus according to claim 1, wherein a part or all of a thin tube obtained by dividing a part of the pipe into a plurality of parts has a heat generating part of the control part, the pedestal or at least A pumping apparatus, wherein the heat generating portion of the inverter is brought into contact. 9. The water pumping apparatus according to claim 1, wherein the heat generating portion of the control unit, the pedestal, or at least the inverter heat is generated in a flat portion in which a part of the pipe has a flat shape. A pumping device characterized in that the parts are brought into contact with each other.